V70 2.4 L5-2.4L VIN 61 B5244S (2001)
Brake Rotor/Disc: Customer Interest
Brakes - Resonance/Vibration
S60/V70 (01-)/V70XC (01-) 2001-
S80 1999-
Section
5
Group
51
No.
0007
Year
03
Month
11
Brake vibrations, analysis and corrective action
Background:
This Service Bulletin describes diagnosis and the repair process in the event of vibrations and resonance noise when braking. It is primarily intended to
make it easy to identify whether the vibrations are coming from the front or rear wheels.
Material
Description
P/N
Screw
95 5349
Special tools
Description
P/N
Measuring tool kit
9995418
Holder dial test indicator
999 5773
Vibration symptoms that may be apparent when braking
Speed at which the symptom
Front brakes
Rear brakes
is most evident MPH (km/h)
55-70 (90-110)
Steering wheel
Vibrations in the bodywork
vibrations
Humming
5-25 (10-40)
Humming/vibrations (54 Hz)
from the rear axle
Variation in the thickness of the front brake discs may sometimes be experienced as a pulsing brake pedal or variable deceleration during normal
braking, just before coming to a standstill.
Conditions:
Customer complaints about constant vehicle vibrations and humming when braking from the brakes and not from ABS modulation.
Brakes
Checking and adjusting brake vibrations
